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RTR Spec 5 Wide Body Kit; Unpainted (18-23 Mustang Fastback, Excluding GT350 & GT500)

Item 406731
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Our Price

$3,320.99 (kit)

FREE Shipping + $40.00 Oversized Item Fee Market Price $3,819.14 You Save 13% ($498.15) Up to 10% off for Military & First Responders! See Details

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Ship to: Ashburn - 20149
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • RTR Formula Drift Styling
      • Widens Front Fender 50mm and Rear Fender 75mm
      • Allows for use of Wider Wheels/Tires
      • Durable, Lightweight Fiberglass Construction
      • Smooth Gel Coat Top Finish
      • Professional Installation Required
      • Ships Unpainted
      • Fits 2018-2023 Fastback Mustang Models, Excluding GT350 and GT500


      RTR Formula Drift Styling. A RTR Spec 5 Wide Body Kit will give your personal 2018-2019 Mustang the same aggressive styling of a track car. This Body Kit was designed, developed and tested on Vaughn Gittin Jr’s Mustang RTR Spec 5D Formula Drift competition car. This Spec 5 Wide Body Kit will widen your front fenders by 50mm and your rear fenders by 75mm allowing you to run much wider wheels and tires on all four corners of your S550 Mustang.

      High Quality Fiberglass Construction. RTR manufactures their Spec 5 Wide Body Kit from an extremely durable, lightweight fiberglass material. Featuring a smooth, gel top coat finish this Body Kit can be painted however you like for a fully customized appearance.

      Professional Installation Required. This RTR Spec 5 Wide Body Kit is designed to be installed by a professional body shop as cutting, welding and major body modifications are required for installation. This RTR Spec 5 Wide Body Kit will also require prep and primer prior to painting. Please check locally for pricing estimates.

      Recommended Upgrade. With much wider fenders than stock, RTR recommends running a 285/30-20 front tire on a 20x9.5 wheel with a -10mm offset, and a 305/30-20 rear tire on a 20x11 wheel with a -16mm offset.

      Application. This Unpainted RTR Spec 5 Wide Body Kit is designed to fit 2018-2023 Fastback Mustang models, excluding the Shelby GT350 and GT500.




      RTR 1898-7029

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Front Flare, Left, 2 piece
      • (1) Front Flare Right, 2 piece
      • (1) Rear Flare Left
      • (1) Rear Flare Right
      • (1) Fuel Door Cover
      • (2) Front Fender Liner extension
      • (70) 10-24 Nut Sert
      • (70) 10-24x 3/4-inch Button Head Cap Screw
      • (70) #10 Flat Washer
      • (2) 1/4-20 x 3/4-inch Hex Head Cap screw
      • (2) 1/4-20 Lock Nut
      • (4) 1/4-inch Fender washer
      • (1) RTR Template Sheet
      • (2) Adhesion Promoter
      • (12) 1/4-inch Plastic Rivets

      Customer Reviews (8)

        Brand Image

        Reviews of RTR Exterior products have an average rating of 4.7 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Mustang

          • Bullitt - 19, 20
          • EcoBoost - 18, 19, 20, 21, 22, 23
          • GT - 18, 19, 20, 21, 22, 23
          • Mach 1 - 21, 22, 23

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